Step-by-step explanation:
All steps are in pic above.
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Answer:
x²+5x-49
Step-by-step explanation:
-7² -x+6x+x²
combine like terms
-x+6x is 5x
simplify -7² is -49
now rewrite the equation
x²+5x-49
a/c = d/a
you would cross multiply to get aa = cd
aa = a^2
so you would have a^2 = cd